FIELD: chemistry.
SUBSTANCE: invention relates to material for an ophthalmic device, comprising: a) a UV/visible light absorbent of Formula A or Formula B:
,
where R1=H, CH3, CH2CH3 or CH2OH; R2=C1-C4 alkyl or C1-C4 alkoxy; R3=H, CH3, CH3O, F, Cl, Br, I or CF3;
,
where X=C3-C4 alkenyl, C3-C4 alkyl, CH2CH2CH2SCH2CH2 or CH2CH2CH2SCH2CH2CH2; Y= is absent, if X=C3-C4 alkenyl, in another case Y=-O-C(=O)-C(R1)=CH2, -O-C(=O)NHCH2CH2OC(=O)-C(R1)=CH2 or -O-C(=O)NHC(CH3)2(C6H4)C(CH3)=CH2; R1=H, CH3, CH2CH3 or CH2OH; R2=C1-C4 alkyl; and R3=H, CH3, CH3O, F, Cl, Br, I or CF3; and b) a blue light chromophore; and c) polymer material which forms the device, where the UV/visible light absorbent is used in concentration not higher than 4.0% in the material, and demonstrates less than 10% light transmission at wavelength of 440 nm. The invention also relates to an implantable ophthalmic device.
EFFECT: obtaining materials for an ophthalmic device which enable to cut off blue and ultraviolet colour at low UV concentrations.
17 cl, 4 dwg, 2 tbl, 2 ex
